Disk plow.



N. & L. NILSON.

DISK PLOW; APPLICATION FILED MAY 29. 1911.

. Patented Dec. 8, 1914 EELS $134335 AN.

PATENT OFFICE.

LEGERABD 'IiiIlSfiN. G? VIAYZ ATA. MINNESOTA.

Specification of Letters Patent.

llv it. know: llmt c. fins Finns-x and lirtmriurn Nruox. n! il'urzurn Hrnncpin county, B'linnraom. iuii: inveirmwl (02 now and, usclnl Improvements in lhsk llows, of Wlll(ll the folk 'ing is a SPBClfiUfi' lion.

The object oi' our invention is to provide :1 disk plow having ncnns to prevent ,ihc dirt from clogging on the oiskj i A further ohjrci; to n'oviiic a deep cut ting: subsoil plow.

A still further ohjcrt is to p ride a disk plow which will throii {he dirt out laterally n, sullirirnt iii-hum: lo prevent it from full- I lo llw furrow.

Uthcr t bjeiin of tlic invention will appear from tho following detailed description.

The invnnti zm consists gmimnily in 22 concavo-conrcx dish having wings spirall ranged on itm con 'cx side and (Xtl dings froin the c trr of the. d 'l to {he wripher thereof, Win-re y Hie diz'r will he led. him ally in :1 spiral form.

Further For invrntinn coin-lists in \zl'lfliin' constrnrtiono i mmhimtions, all horn inuftcr and particularly out in fin: r

In the. arm-in ing; zihnwing forming part cl lhis ggiw- :czvi'ion. Figure l is. a side (lcrzrtion or :1. d plow cmborls'inr' our invention Fig. 2 is :1 plan new of lzhc min. Fig. 3 a rvrticiil smriioiml \inw. showing: the COIl9tilll2llififl of tho disk.

In the dra ing. "3 rcprrscnts the dish. concwsowomnx in form. hiring; iirel crnnly a central opening I; and a huh 4 provided with an annular flange 5 wherein the dish is sccnrcil. A collar ('3 is inonntcd on the and of :1. shaft- 7 and has :1 hearing for the central portion of tin: dish around the opening therein. Tho huh 4- nlso has a. sprocket wheel fornir-d ihcrmn in receive r ilrinng ll'llf or chain that is opcratr-d frmn a. snitaiilc sonrri. f power. not shown. A bracket 10 is proviilvd 2m suturing; the shaft 7 lo 1:. lrznm ll. tlw ln" Qliot having :2 hearing in which the shaft 7 revolves. The edge of the (link s PM Hi to form matting snrl fnrcs 12 ill. inlvr: lilrh opmalc in not into the soil to tho mxsiri-d rlo'plh. Upon the nonvcx idc or the dial; we :arrimgn srries of liHlPS 1 1. "l in: hlndoa hair lhv lumition of (he mold lhml'llf and are spirally an rangz d lwtw cn the writer of the. din-ll and irs perii plior m"; mpvrcd slightly from the Pall-riled Dec. 8,1914.

19 .1. Scrmi No. 630, Q3,

a-rnirr la -Yard (in: outside of the disk and zit thrir inncr curls have projections or wings llwhirh lie in planes at right angles 5511b" stuntizxlly to U a cnrrespomling ends of the Contiguous ll i The lilzidw are also prefi ernhly iiiulinw l to ilw plane of lhc disk. The client of this nrrzingvinnl; 1 to cause. the soil to he moved centrally hev=lawcnlhc blades toward lhe middle portion o 1' film i i; from \vlnnrc it. dischnrgcd lsilcrzili at one Si-llj of the diL-lf. the spiral urningi'lnscnt 0f the blades and their location with. r putt to one another preventing tlir soil from ging or sticking to the surface of l" the. winter disk enters the soil the d rt will lac directed by the blade through the spiral channel formed hctn'ccn the blades toward tho disk center and as d1 :lirt falls from tho ccntor of the disk wil llV the wings 1i sullioiczit. distance to on in to prevrnt it from falling hack in the finrow formed by the disk The plow may he made in various-sizes 11nd enitahlc numlmr of the. spiral blades and the character of the Work to ho pcrr nrnnd thereby.

0. claim as our invention 1. rotary plow comprising a conccvo (1) new: dish. a scrics of blades secured w the" ronvr-X f r: of said. disk, said blades being mm'ml iongitmlihally and extending from :1 point near the axis of said disk to the periphery thereof, the outer ends of said blades having cutting edges and said blades l ving outwardly inclined with inspect to the axis of said disk. said disk and said blades Forming a swing of spiral channels through which the FGll is dircrtcd toward the central portion of said disk, the inner and; of said hlndns overhanging the middle P'H'EEOXI of Said dial: and directing tho soil out by said lsladis away from the furrow.

2. A rotary plow comprising a c0nc=w0- com'cX disk. bladcs exlni'iding radially of f uid (m1; and having (*ntlin edges at their outer ends. Che inner cnrl or each blade hauling: transversely past ho corres mnding Hill oi the adjacent blade and spz'ici'zd liicrw from in fin-n1 narrow channels hctr'wrn the lilazlvn. and all of Said lilrides Fleeing \ramllr inclined with respect to the 2; mid disk 3-5. A rotary plow comprising disk 1 ing a rvccsv l edge lormir-g cull ng SH. at intervals hcreon, and u serins Pf h lm vn'iploycd. nccording' to the size of.

mounted on said disk and having cutting edges at their outer ends adjacent to the alternate recesses in said disk.

'4. A rotary plow comprising a disk having a substantially straight outer portion and a convex middle portion forming a continuation of said outer portion, a series of blades secured edgewise to the curved and straight outer portions of said disk, said blades having cutting edges at their outer end which roject outwandly beyond the curved midcle portion of said disk, comparatively narrow channels or passe es being formed between the inner ends 0 adjacent blades and said disk, 'through which passages the material is directed, the outer portions of said blades and said disks directing the material into and through said channels.

5. A rotary plow comprising a disk having a recessed periphery provided with cutting ed es, a series of blades mounted on said dis and having cutting edges adjacent to the edges of said recesses, the inner ends of said blades being disposed near the axis of said disk and outwardly inclined with respect thereto, the soil being directed between said blades and said disk and blades forming a series of spiral channels extending from the periphery of said disk toward the center thereof.

In witness whereof, we have hereunto set our hands this 24th of Ma 1911.

NILS NILSO LEONARD NILSON.

Witnesses:

GENEVIEVE E. SORENSEN, EDWARD A. PAUL. 

